Last updated: March 2, 2024
The weather in Sumas, United States, during January is characterized by an average temperature of 3°C (37°F). Highs can soar to 10°C (49°F), while lows may dip to -8°C (18°F). Typically, the humidity level in Sumas throughout January hovers around 87%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Sumas averages 240 mm (9.4 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 8 hours 44 minutes of daylight, with the sun shining for approximately 2 hours 37 minutes each day. Additionally, there is a 20% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Sumas reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 45 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||